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This modified oil pressure relief valve is longer than the factory unit and is used to solve problems with oil pressure spiking too high due to the original valve piston sticking or binding in its bore due to wear of the bore.
If you are rebuilding your 2H or 12HT, or are having problems with unstable high oil pressure, then this item is a must-have.
Replaces Toyota pn:
15131-22010 - modified valve
Install with the related spring:
15132-76011 - spring
15131-22010L (L = long)
2022 08 19
12ht, 12h-t oil pressure relief valve, 1513122010